Which third-level creature is the best?

I think that, given the fact that there are both ranged and melee units among the level 3 units, it would be more convenient to evaluate them separately.
For example, the Great Elf is undoubtedly the best ranged unit. But at the same time, it cannot compare to the Dragonfly in melee combat, which easily blocks it.
Therefore, here, unlike the level 7 units, the influence of the situation is much greater.